Please Help! Use the fact that √7 is a solution to the equation x² = 7 to find a decimal approximation of √7 whose square is between 6.9 and 7.1

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

What is the range of the data below? .8090100